The Industrial Technology Research Institute in Taiwan recently gave videophiles a lot to look forward to in the coming years. They displayed an awesome 42 inch 3D LCD TV that didn't require viewers to wear those awful glasses

Consumers will likely see 3D LCD TVs that don't require people to wear polarized glasses out on global markets by 2015, according to a Taiwanese research group that showed off an early version of such a device this week.

Taiwan's Industrial Technology Research Institute (ITRI) displayed a 42-inch glasses-free 3D LCD TV this week, and the company can currently make them with screens as large as 65 inches, according to Stephen Jeng, director of ITRI's 3D System & Application Division.

The technology is considered vital to getting 3D into more people's living rooms. Analysts say most people don't want to wear polarized glasses to watch 3D TV, and many balk at the price, up to $200 per pair for some of the glasses. The high price might make a person think twice about hosting a World Cup or Super Bowl party with friends.

Jeng says ITRI's technology will be used in digital signs and 3D digital photo-frames initially. The main issues for glasses-free 3D TV are broadcasting, availability of content, and eye safety, he said. Small quantities of glasses-free digital signage and 3D photo frames are already available on the market, he said, but may yet take a year or two to take off.

The glasses-free 3D LCD TV on display from ITRI this week showed pictures of objects that ITRI's software converted into a 3D image. The image was blurry and the technology appears to still be a long way from being ready.

The research group is using parallax barrier technology to create the 3D effect on the TV. The TV was branded Chi Mei, from Chimei Innolux, but Jeng said the company gave ITRI a regular LCD TV to use for the show and that ITRI added its 3D technology to the set on display. Chimei Innolux is not making glasses-free 3D TVs.